The exercise ball, also known as a yoga ball or stability ball, is a versatile fitness tool used for yoga, therapy, and workouts. It serves as a yoga ball chair, promoting active sitting and better posture. Available in various sizes and materials, including anti-burst designs, it supports exercises from chair yoga to Pilates. Therapy balls aid in rehabilitation, while weighted options like lacrosse balls or bocce ball sets add resistance for strength training. Popular in gyms and clinics, the exercise ball combines yoga principles with fitness routines, fostering balance, core strength, and overall wellness.